Getting 401 Unauthorized on Create an Event with basic auth

I'm a trial customer and I'm trying to create an event using basic authentication. I am using the same credentials for the POST below as I do for the GET of events (not shown). The GET works fine for getting the events. The POST to create an event does not and returns a 401 Unauthorized.

[*Note from a CTCT Community Admin: I removed the beginning and ending brackets from the "?xml version="1.0" encoding="UTF-8" standalone="yes"?" line in your post above because that line breaks the "Developer Support" tab in our CTCT "Labs JMML Q&A" Facebook app (apparently, the app is trying to render that line as is, which wouldn't be acceptable in the middle of a page).]

Re: Getting 401 Unauthorized on Create an Event with basic auth

What type of authentication are you using? The wrapper should be using OAuth by default, and it stores the OAuth credentials in the session. Try closing your session (close browser), then reauthenticate. We also reset our API services this earlier today due to a latency issue, which may also be related. You can also code another means of secure storage on your server/host or possibly use cookies to manage your OAuth crednetials if you are accessing from a single browser so the credentials are preserved between sessions.

Please let us know whether a new session and reauthenticating resolve your issue.